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Origin Insertion Action Muscles of the Pelvis

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guroseyo's version from 2018-03-07 06:06

Muscles of the Pelvis

MuscleOriginInsertionAction
IliacusIliac crest and fossa of iliumLesser trochanter and nearby shaft of femurFlex hip
Psoas majorBodies, intervertebral discs of T12 – L5; transverse processes of lumbar vertebraeLesser trochanter and nearby shaft of femurFlex hip
Psoas minor Bodies, intervertebral discs of T12 - L5, transverse processes of lumbar vertebraeLesser trochanter, Fascia over the psoas major and iliacus Flex hip
Gluteus maximusIliac crest to posterior superior spine of ilium; coccyx; posterior lower sacrum; aponeurosis of erector spinaeGluteal tuberosity of femur; lateral condyle of tibia via iliotibial bandExtend
Gluteus mediusLateral ilium between crest and acetabulumGreater trochanter of femurAbduct, medially rotate hip
Gluteus minimusLateral ilium between crest and acetabulumGreater trochanter of femurAbduct, medially rotate hip
PiriformisAnterior surface of sacrum; gluteal surface of iliumGreater trochanter of femurLaterally rotate, flex hip
Gemellus SuperiorOuter surface of the spine of ischiumGreater trochanter of the femur Laterally rotate thigh
Obturator InternusInternal surface of obturator membrane Greater trochanter of the femur Laterally rotate thigh
Gemellus Inferior Ischial tuberosityGreater trochanter of the femurLaterally rotate thigh
Obturator Externus External surface of obturator membrane Greater trochanter of the femur Laterally rotate thigh
Rectus femorisIschial tuberosity of ischiumIntertrochanteric crest of femurLaterally rotate hip
Gracilisinferior pubic ramusmedial flare of tibiaadduction of hip, internal rotate thigh, flexion of thigh
Iliopsoasiliac fossafemur, joined by tendon of psoas majorflex thigh at the hip, extends lumbar spine
PectineusSuperior pubic ramuslesser trochanter to the linea asperaadduction of the thigh, internal rotation of the thigh
Levator aniPosterior surface of the body of the pubis, ascia of the obturator internusIschial spine, CoccyxElevate the pelvic floor
Adductor MagnusInferior pubic ramus and the ramus of the ischiumMedial margin of the gluteal tuberosity of the femur, medial to gluteus maximusAdduction of the thigh at the hip, extension of the thigh at the hip
Adductor BrevisInferior ramus and body of the pubis, between gracilis and obturator externusAlong a line from the lesser trochanter to the linea asperaAdduction of the thigh at the hip, internal rotation of the thigh at the hip
Adductor Longusangle between the crest and pubic symphysismedial lip of the linea asperaAdduction of the thigh at the hip, assists with internal rotation of the thigh at the hip, assists with flexion of the thigh at the hip
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